sapi: Add rtems_fatal_source_description()

cpukit/sapi/Makefile.am

@@ -38,7 +38,7 @@ libsapi_a_SOURCES = src/debug.c src/extension.c src/extensioncreate.c \
     src/rtemsapi.c src/extensiondata.c src/getversionstring.c \
     src/chainappendnotify.c src/chaingetnotify.c src/chaingetwait.c \
     src/chainprependnotify.c src/rbheap.c src/interrdesc.c \
-    src/fatal2.c
+    src/fatal2.c src/fatalsrcdesc.c
 libsapi_a_CPPFLAGS = $(AM_CPPFLAGS)
 
 include $(srcdir)/preinstall.am

cpukit/sapi/include/rtems/fatal.h

@@ -82,6 +82,16 @@ void rtems_fatal(
   rtems_fatal_code error
 ) RTEMS_COMPILER_NO_RETURN_ATTRIBUTE;
 
+/**
+ * @brief Returns a description for a fatal source.
+ *
+ * @param[in] source The fatal source.
+ *
+ * @return The fatal source description or "?" in case the passed fatal source
+ * is invalid.
+ */
+const char *rtems_fatal_source_description( rtems_fatal_source source );
+
 /**
  * @brief Returns a description for an internal error code.
  *

cpukit/sapi/src/fatalsrcdesc.c

@@ -0,0 +1,53 @@
+/**
+ * @file
+ *
+ * @brief Implementation of rtems_fatal_source_description()
+ *
+ * @ingroup ClassicFatal
+ */
+
+/*
+ * Copyright (c) 2013 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/fatal.h>
+
+static const char *const fatal_source_desc [] = {
+  "INTERNAL_ERROR_CORE",
+  "INTERNAL_ERROR_RTEMS_API",
+  "INTERNAL_ERROR_POSIX_API",
+  "RTEMS_FATAL_SOURCE_BDBUF",
+  "RTEMS_FATAL_SOURCE_APPLICATION",
+  "RTEMS_FATAL_SOURCE_EXIT",
+  "RTEMS_FATAL_SOURCE_BSP_GENERIC",
+  "RTEMS_FATAL_SOURCE_BSP_SPECIFIC",
+  "RTEMS_FATAL_SOURCE_ASSERT",
+  "RTEMS_FATAL_SOURCE_STACK_CHECKER",
+  "RTEMS_FATAL_SOURCE_EXCEPTION"
+};
+
+const char *rtems_fatal_source_description( rtems_fatal_source source )
+{
+  size_t i = source;
+  const char *desc = "?";
+
+  if ( i < RTEMS_ARRAY_SIZE( fatal_source_desc ) ) {
+    desc = fatal_source_desc [i];
+  }
+
+  return desc;
+}

doc/user/fatal.t

@@ -226,6 +226,33 @@ NONE
 
 Prints the exception frame via printk().
 
+@c
+@c
+@c
+@page
+@subsection FATAL_SOURCE_DESCRIPTION - Returns a description for a fatal source
+
+@cindex fatal error
+
+@subheading CALLING SEQUENCE:
+
+@ifset is-C
+@findex rtems_fatal_source_description
+@example
+const char *rtems_fatal_source_description(
+  rtems_fatal_source source
+);
+@end example
+@end ifset
+
+@subheading DIRECTIVE STATUS CODES
+
+The fatal source description or "?" in case the passed fatal source is invalid.
+
+@subheading DESCRIPTION:
+
+Returns a description for a fatal source.
+
 @c
 @c
 @c

testsuites/sptests/spinternalerror02/init.c

@@ -20,7 +20,7 @@
 
 #include <rtems.h>
 
-static void test(void)
+static void test_internal_error_description(void)
 {
   rtems_fatal_code error = 0;
   const char *desc_last = NULL;
@@ -36,11 +36,28 @@ static void test(void)
   rtems_test_assert( error - 3 == INTERNAL_ERROR_CPU_ISR_INSTALL_VECTOR );
 }
 
+static void test_fatal_source_description(void)
+{
+  rtems_fatal_source source = 0;
+  const char *desc_last = NULL;
+  const char *desc;
+
+  do {
+    desc_last = desc;
+    desc = rtems_fatal_source_description( source );
+    ++source;
+    puts( desc );
+  } while ( desc != desc_last );
+
+  rtems_test_assert( source - 3 == RTEMS_FATAL_SOURCE_EXCEPTION );
+}
+
 static void Init(rtems_task_argument arg)
 {
   puts("\n\n*** TEST SPINTERNALERROR 2 ***");
 
-  test();
+  test_internal_error_description();
+  test_fatal_source_description();
 
   puts("*** END OF TEST SPINTERNALERROR 2 ***");
 

testsuites/sptests/spinternalerror02/spinternalerror02.scn

@@ -26,4 +26,17 @@ INTERNAL_ERROR_NO_MEMORY_FOR_HEAP
 INTERNAL_ERROR_CPU_ISR_INSTALL_VECTOR
 ?
 ?
+INTERNAL_ERROR_CORE
+INTERNAL_ERROR_RTEMS_API
+INTERNAL_ERROR_POSIX_API
+RTEMS_FATAL_SOURCE_BDBUF
+RTEMS_FATAL_SOURCE_APPLICATION
+RTEMS_FATAL_SOURCE_EXIT
+RTEMS_FATAL_SOURCE_BSP_GENERIC
+RTEMS_FATAL_SOURCE_BSP_SPECIFIC
+RTEMS_FATAL_SOURCE_ASSERT
+RTEMS_FATAL_SOURCE_STACK_CHECKER
+RTEMS_FATAL_SOURCE_EXCEPTION
+?
+?
 *** END OF TEST SPINTERNALERROR 2 ***